Pedestal-table-locking device.



No. 893,821. PATENTRD JULY 21, 1908.

A 11. TYDEN. PBDESTAL 11.111351001111111 DBVICBJ APPLIGATION FILED MAR. 14. 1908.

2 SHEETS-SHEET l.

No. 893,82. PATBNTED JULY 21,1908. E. TYDEN.

PEDBSTALTABLE LDQKING DEVICE.

' APPLICATION ,FILED 111112.14. 190e.

2 SHEETS-SHEET 2.

WZ e ,Se Jzvemoy". @dem EMIL TYDEN, OF HASTINGS, MICHIGAN.

- PEDESTAL-TABLE-IQOCIING 1)EVICE.

Toall whom t may conce-ra:

Be it known that I, EMIL TYDEN, a citizen of the United States, residing at Hastings', in the county of Barry and State of Michigan, have invented new and useful Improve-- ments in Pedestal-'lable-Locking Devices,

of which the following is-a specification, ref

p erence being had to the accompanying drawings, forming a part thereof.

This invention relates to pedestal exten sion tables, and particularly, the devices for locking the pedestal members together.

lt consists in the `features of construction shown and described as indicated in the claims.

In the Adrawings:-Figure 1 is a vertical longitudinal section of a pedestal extension table containing this invention, the devices being shown in locked position. Fig. 2 is a sin'lilarseetion showing the portion4 of the table containing the locking devices, the two members being slightly separated as when v the table inen'ibers approach and before they are completely.closed together after disengagement o'l" the locking ldevices and partial separation. Fig. 3 is a section at the line 3-3 on Fig.r 1. Fig. 4 is a detail elevation of the inner side ofthe upper e'nd portion of one pedestal member showing the lock-oper ating device.' Fig. 5 is a view similar to F ig. 4 showing a .modification One of the pedestal members, l, is provided with studs or posts, 2, 2, jutting inwardly from each of its opposite side walls, designed for engagement of a catch to be carried by the opposite pedestal member for connecting and drawing and securing to gether the two Amembers -oi the pedestal. Upon plates, 3, 3, secured to the two correspending walls of` the opposite pedestal member there are `fulcrumed bell-crank levers, 4, 4, having each an arm, 4, depending from the fulcrum and an arm, 4b, extending off from the fulerum outwardly,-that is,

away from the meeting plane of the pedestal members. To the depending arm of each lever, there is pivoted a latch, 5,v extending i11ward,-that is, toward and across the parting planeadapted for engagement with the post, 2, of the corresponding wallA of the vopposite pedestal member. From the other` arm, 4b, of each bell-crank lever connecting rods,l 6,16, y'extend upward within the pedestal, said connecting rods, 6, 6, being connected respectively to the, opposite ends of an evener, 7, which is loosely connected Specication of Letters Patent. Application :filed March 14, 15108. Serial No'. 421,128.

Patented July 21, 190s.

midway between the connecting rods to a to swing its inner end downward and thrust downward the connecting ,rod, 6.

An o erating rod, 11, is connected to the upstan ing arm, Sb, of the bell-crank lever and extends off toward one end of the table Where it may be connected with any 'suitable means for actuating it and locking it, asthe hand lever, 12, to which the rod, 11, is connected at a point so situated with respect to the fulcrunrof thehand lever as to be carried into line behind or outward from said fulcrumv when the hand lever is swung outward and upward to a position at which it is stopped against the table top or in 'any other eonvenient manner. The latch, 5, has at its pivoted end a heel projection, 5a, extending up ward forming a shoulder which encounters a stud, 3, projecting from the plate, 3, when the bell-crank lever, 4, is rocked for swinging its depending arm inward,-tbat is, toward the parting plane of the pedestal men1bers,-` and such encounter causes the latch, 5, to be lifted to the position shown in Fig. 2, disengaging it from the stud on the pedestal member, such encounter of the shoulder of the heel, 5a, with the stud, 3a, and consequent lifting of the nose of the latch, occurring, it will be seen, after the latch has been thrust `inward by the swinging of the bell-crank leveras described, and after said latch is thereby rendered freefrom frictional engagement with the stud so that it can be easily lifted.

The operation of the device for engaging and drawing the pedestal members together and for locking them when firmly drawn to- 'gether will be obvious from the foregoing descirIiption. her purpose ofthe evener, 7, is to compensate for any inequality in the connections ofy the two latches at opposite sides or an in equality in the tting to each other 4o the two sides oithepedestal which might, in the absence of some provision to the contrary,

cause one'side to be drawn togetherb the latch and stud at that side while they e estal members werestill separated at the ot er side.

Thev pivoting of the evener, as described, l

causes the two sides to be closed up without regard to such inequalities Within the rangev fof adaptation of the device, becauseas soonr as one side is closed, no more drawing being possible through the end of the evener connected with the latch at that-side; the entire rocking action of the bell-crank lever, 8, -5 must take effect in drawing the other side, the evener rocking on the bell-erank lever7 the connection of such evener with the connectin rod at the sidev which is already closed ecoming the fulcrum and causing the 10 opposite end to give double movement to its connecting rod. When the lock is 4to be operated in a table which has the table-top members extensible relatively to their respective pedestal members ;-that is, so that the top can be opened up without opening the(pedestal,-it may not b e necessary to rovli e 'connections extending oi 'to the en of the table for operat-l ing the device, and in ordeir that it may be conveniently operatedsaffndlocked without such connections, the form-ofth` evener and the leveren which it is mounted may convenientl be ,changed as shown in Fig. 5, in which tie evener7 7X, is pivoted to a bellcrank lever, 8X, mounted on a bracket, 9X, for rocking transversely of the table ,--that is,

parallel with the parting plana-the ope 1 t mg. handle arm; SY, of thebellbrankih/yer being thrown from horizontal or appiieici-y mately horizontal position at one side oi' its fulcrum to a point a little past horizontalrlposition at the other side for carrying the pivotal connection of ,the evener, 7X, to the depending arm' of said bell-crank lever from a oint below the fulcrum to a` point above the ulcrum a little past the vertical line therethrough'where it is located by tlleetopping vof the handle arm, SY, on the bracket; 9*.'

I claimto A 40 l. In'a'pedestal extension table, in eombination with the two, pedestal members, two latching 1 devices for connecting the pedestal .members together situated at oppof site sides of the axis of' the pedestal and each comprising two elements adapted to engage,

one mounted upon each pedestal member, said elements on one pedestal member being movable thereon for drawing the pedestal members together after engagement; an evener carrier mounted on said pedestal member; an levener pivoted intermediate its ends to such carrier; operating connections from the op osite ends of the evener to said movable etching elements respectively, and means for operating the evener carrier. f

2. .In a pedestal extension table, in combination with the separable members 'of the pedestal, two separate pedestalconnecting devices for drawing the pedestal members together extending across the parting plane located at opposite sides of the `axis of the pedestal; an evener carrier mounted on the pedestal; an evener pivoted thereon; separate operating connections from the oppovices respectively', and means for actuating` and locking the evener carrier.

4. In a pedestal extensiofn table, in combination with the two pedestal members, bell-crank levers fulcrumed on the opposite sides of one of said pedestal members; latches pivoted to said bell-crank levers re-` spectively; means on the opposite pedestal,

members for engaging the latches; connect ing rods extending from the bell-crank levers upward within the pedestal; an evener at the upper part of the pedestal to whose opposite ends said rods 'are connected; a carrier to which the evener is pivoted mounted on `the pedestal at the upper part, and means for operating the carrier.v

5. In a pedestal extension table, in eom' bination with the two pedestal inembeis, bell-crank levers fulcrumed on the opposite sides of one of said pedestal members;

latches ivoted to said bell-crank levers respective y means on the opposite pedestal members for engaging theA latches; connecting rods extending from the bell-crank le- .vers upward within the pedestal; an evener at the upper part ot the pedestal to whose opposite endspsaid rods are connected; a lever fulcrumed at the upper part of the pedestal and on which the evener is pivotally mounted between the rod connections; means for rocking the lever over its fulcruin and for securing it at one limit ofits rocking movement.`

6. In a pedestal extension table,'in comv mounted between the rod connections; an

operating rod connected to the lever and extending toward one end of the table top, and means at said end for locking the rod at one limit of its longitudinal movement for operating' the lever.

crank lever fuleruined on one' pedestal mem- 7. In a edestal extension table, in comu bination with the pedestal members, a bellber having a depending arm g' a 'latch pivoted to saiddepending arm; means on the opposite pedestal member for engaging said latch, the latch being provided near its ivot With a shoulder, and a stud Xed wti respect to the fulcrum of the bell-crank lever in position to be encountered by the shoulder when the lever is operated for thrusting v the latch toward the lmeans connected with t e other arm of the arting plane and,

bell-crank arm for so operating the lever.

In testimony whereof, l have hereunto set 1:3 my hand at Chicago, Illinois, this 28th day of February, 1908.

EMIL TYD'E'N.

` Vtnesses:

EDWARD T. Winn', M. GEn'rnUDE Am'. 

